Johan Jansen (born 7 February 1989) is a Dutch professional footballer who plays, as a goalkeeper, for Sparta Nijkerk in the Dutch Derde Divisie. Career Born in Terschuur, Jansen made his professiona
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85dd8cc172b8546b5555a661c603b7587708579af6a5eb905a2a4fece0266fba. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/04396206-9d05-495f-aefd-f1c9a44e7d1a.json and https://artists.proofprofile.net/proofs/artist/04396206-9d05-495f-aefd-f1c9a44e7d1a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Johan Jansen Plays Country Love Songs on Steelguitar